From 9d9450a207a474c40bf1f54e277cdcc8617d6489 Mon Sep 17 00:00:00 2001
From: Friz64 <friz64@protonmail.com>
Date: Fri, 10 Nov 2023 20:03:26 +0100
Subject: [PATCH] Fix transparency in ab_glyph renderer

---
 src/title/ab_glyph_renderer.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/title/ab_glyph_renderer.rs b/src/title/ab_glyph_renderer.rs
index 2b2d4b3..e049359 100644
--- a/src/title/ab_glyph_renderer.rs
+++ b/src/title/ab_glyph_renderer.rs
@@ -93,6 +93,10 @@ impl AbGlyphTitleText {
                 let left = bounds.min.x as u32;
                 let top = bounds.min.y as u32;
                 outline.draw(|x, y, c| {
+                    // `ab_glyph` may return values greater than 1.0, but they are defined to be
+                    // same as 1.0. For our purposes, we need to contrain this value.
+                    let c = c.min(1.0);
+
                     let p_idx = (top + y) * width + (left + x);
                     let old_alpha_u8 = pixels[p_idx as usize].alpha();
                     let new_alpha = c + (old_alpha_u8 as f32 / 255.0);